Adept Rocketry - ALT05 and ALT05-50K

Maximum Altitude Altimeter

ALT05, Price: $89 (GP-23A battery included)

ALT05-50K, Price: $99 (GP-23A battery included)

The ALT05 Altimeter is used to measure and report the maximum above-ground altitude value obtained during a rocket's flight. The ALT05 is functionally identical to the ALTIM1 Altimeter with the exception of its size and weight. The ALT05 was designed specially for use in small contest rockets, or for use in small diameter rockets or darts that will reach high altitudes. Its weight including the battery is only 13 grams (0.46 ounce) to add minimal weight to the smallest of rockets. It fits inside a diameter of .68 inch (17.3 mm), a loose fit in an Estes BT-20 body tube.

The ALT05 captures the highest altitude obtained during a flight to a maximum absolute altitude of 15,000 feet above sea level. The ALT05-50K version functions to 50,000 feet. The maximum value obtained above the local ground-zero altitude is reported precisely in one-foot increments.

Once powered up, the ALT05 constantly measures the ground level altitude and waits for a quick 150-foot change upward. It then captures the maximum altitude obtained (above ground), then begins to report the value after it starts to descend. The value is "beeped" out as a series of counts that are heard easily, even when the unit is still inside the rocket. The rocketeer knows the maximum altitude as soon as he/she picks it up, or just gets close to it.

SPECIFICATIONS

  • Altitude Capability: to 15,000 feet Above Ground Level (AGL), to limit of 15,000 feet Above Sea Level (ASL) for the standard version (50,000 feet for the ALT05-50K extended version).
  • Lowest Maximum Altitude Readable: 150 feet. Liftoff is detected when the altitude quickly increases by 150 feet. Mach compatible - detects apogee at true apogee.
  • Resolution of Measurement: one foot; system uses a logarithmic16-bit A-to-D converter.
  • Accuracy Over Full Range: +/- 5% of reading with all atmospheric, barometric, temperature, and other conditions considered. Calibration accuracy is +/- 1%, typical.
  • Piezo Beeper reports altitude and operational status.
  • Battery Life: 8 hours minimum.
  • Measures .55" wide by .67" thick by 2.7" long.
  • Weight: 6 grams. Weight with battery installed is 0.46 ounce (13 grams).
  • Fits inside a tube with a minimum ID of .68 inch (17.3 mm), a loose fit in an Estes BT-20 body tube.
  • Accessory required: one 12-volt alkaline lighter battery (included).

Additional GP-23A Alkaline Lighter Battery; Price: $2.25.

VACBOT Vacuum Chamber, Complete with Bottle and Syringe
Price: $9.95. Use for simulating flights, and for testing small Altimeters that do NOT have deployment outputs.

Electronic Instrumentation is not compatible with the fumes and residue created by rocket motors and deployment charges. Seal holes and gaps in bulkheads and such with epoxy or removable putty.

Tac'N Stik Removable and Reusable Putty
Price: $1.99 per pack.

GP-23A50 Alkaline Lighter Batteries (box of 50 at 50% Discount); Price: $56.25.

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www.adeptrocketry.com, 11-18-05